pros: The sound out of this unit is really great.
cons:
First of all, If you have a good violin, you should know that when this thing is securely clamped to the body of the violin, the sound of the violin is severely affected. I mean... a lot!!. The sound of the violin is highly dependant on a free moving soundboard, and any pressure that prevents that affects the sound. I just couldn't believe it would affect it this much.
maintainablility is really bad! It's like this product is a pre-release beta product or something. You need to open the case using micro-sized tools to replace the battery and take things apart even further to mount/dismount the suction cup. The interior is very delicate and it is easy to break things.